Ответ:
а) -5/7
б) -3 7/15
в) -7 4/5
г)-3/18 или 3/18
е) -3 3/7
Пошаговое объяснение:
-2/7+(-3/7)=-(2/7+3/7)=-5/7;
-1 4/15+(-2 3/15) = -(1 4/15 +2 3/15 = -3 7/15;
-2 3/5 + (-4 1/5) = -(2 3/5 + 4 1/5) = -6 4/5;
-5/18+(-4/9)= -(5/18+4/9)=-(5/18+8/18)=-13/18;
-4 9/14 +(-3 4/7) = -(4 9/14 + 3 4/7) = -(7 9/14+8/14) = -15 17/14=-16 3/14.
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Answers & Comments
Ответ:
а) -5/7
б) -3 7/15
в) -7 4/5
г)-3/18 или 3/18
е) -3 3/7
Ответ:
Пошаговое объяснение:
-2/7+(-3/7)=-(2/7+3/7)=-5/7;
-1 4/15+(-2 3/15) = -(1 4/15 +2 3/15 = -3 7/15;
-2 3/5 + (-4 1/5) = -(2 3/5 + 4 1/5) = -6 4/5;
-5/18+(-4/9)= -(5/18+4/9)=-(5/18+8/18)=-13/18;
-4 9/14 +(-3 4/7) = -(4 9/14 + 3 4/7) = -(7 9/14+8/14) = -15 17/14=-16 3/14.